79824067039 has 4 divisors (see below), whose sum is σ = 79856295624. Its totient is φ = 79791838456.

The previous prime is 79824067027. The next prime is 79824067093. The reversal of 79824067039 is 93076042897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93076042897 = 48623 ⋅1914239.

It is a cyclic number.

It is not a de Polignac number, because 79824067039 - 2⁹ = 79824066527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79824067019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16110577 + ... + 16115530.

It is an arithmetic number, because the mean of its divisors is an integer number (19964073906).

Almost surely, 2^79824067039 is an apocalyptic number.

79824067039 is a deficient number, since it is larger than the sum of its proper divisors (32228585).

79824067039 is a wasteful number, since it uses less digits than its factorization.

79824067039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32228584.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 79824067039 in words is "seventy-nine billion, eight hundred twenty-four million, sixty-seven thousand, thirty-nine".